CN207291770U - Seat for vehicle back frame - Google Patents
Seat for vehicle back frame Download PDFInfo
- Publication number
- CN207291770U CN207291770U CN201721228180.4U CN201721228180U CN207291770U CN 207291770 U CN207291770 U CN 207291770U CN 201721228180 U CN201721228180 U CN 201721228180U CN 207291770 U CN207291770 U CN 207291770U
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- China
- Prior art keywords
- bracket
- seat
- beam parts
- back frame
- extension
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/68—Seat frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/68—Seat frames
- B60N2/682—Joining means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2205/00—General mechanical or structural details
- B60N2205/50—Interlocking shaft arrangements transmitting movement between hinge mechanisms on both sides of a seat
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The utility model provides a kind of back frame applied on the backrest of seat for vehicle.Seat for vehicle possesses with back frame:Chassis body with 2 side frames for extending in roughly vertical direction and being provided separately on seat width;It is arranged on the bar-shaped beam parts extended between 2 side frames and on seat width;For the bracket being attached to beam parts in chassis body;And be arranged on the end of bracket, and to leave end direction extend extension.There is the weld part for being welded on beam parts outer circumferential surface in the end of bracket.
Description
Technical field
It the utility model is related to and apply in automotive sheet, or apply in the traffic work such as rail truck, ship, aircraft
Back frame in the seat of tool.
Background technology
For example, in back frame described in Japanese Unexamined Patent Publication 7-289388 publications, stamping for door shape
The lower end side of chassis body is welded with the round bar extended on seat width.
The round bar that above-mentioned publication is recorded is so that its 1st end face of length direction and the 2nd end face and the inner side of chassis body
The state of docking and welded.Accordingly, it is difficult to improve the productivity of welding operation etc..
That is, the welding operability and welding precision for the back frame that above-mentioned publication is recorded are subject to for example following (a)~(d)
Deng extreme influence.
(a) dimensional discrepancy on the length direction of round bar
(b) depth of parallelism between the 1st end face and the 2nd end face of round bar
(c) dimensional discrepancy of the lower end side of chassis body on seat width
(d) the 1st end face of round bar and the interface of chassis body and the interface of the 2nd end face of round bar and chassis body it
Between the depth of parallelism.
Utility model content
Preferably a kind of seat for vehicle seat back frame that can improve productivity of the one side of the utility model
Frame.
The utility model is the back frame applied in the backrest of seat for vehicle.Seat for vehicle
Possess with back frame:Chassis body, the chassis body has to be extended and in seat width side in roughly vertical direction
2 side frames being provided separately upwards;Beam parts, the beam parts are bar-shaped, are arranged between 2 side frames, and in seat width
Side upwardly extends;Bracket, the bracket are used to beam parts being attached to chassis body;And extension, the extension are set
Put in the end of bracket, and extend to the direction for leaving end.There is the weldering for being welded on beam parts outer circumferential surface in the end of bracket
Socket part.
Thus, the utility model seat for vehicle with back frame (hereinafter referred to as back frame), beam
Component is attached to chassis body via bracket, and therefore, back frame will not be subject to the length direction ruler from beam parts substantially
The influence of the depth of parallelism between the 1st end face and the 2nd end face of very little deviation and beam parts etc..So can obtain can make production
The back frame that rate improves.
But, the bracket of the utility model is welded in the outer circumferential surface of its end and beam parts.Therefore, bracket be possible to because
Heat during welding and produce strain, it is possible to the end is produced big displacement and away from beam parts or close to beam parts.
If produce big thermal strain as described above in bracket, it is likely that the bracket can not suitably be linked fixation
In chassis body, i.e. be possible to suitably link beam parts and be fixed in chassis body.In this regard, the utility model
In bracket, the extension of the oriented direction extension for leaving end is set.
Therefore, even if because of heat when welding and when bracket produces thermal strain, extension and the periphery of beam parts are passed through
Face contacts and limits thermal strain and further develop, therefore can also suppress bracket and produce big strain.
In addition, either from the situation that has been contacted with outer circumferential surface of welding forward extension, still before welding extension not with
The situation of outer circumferential surface contact, can obtain the effect of above-mentioned suppression strain.That is, in the back frame of the utility model, nothing
Whether contacted by extension with beam parts.
In addition, the utility model may make up it is as follows.
That is, extension can set within the carrier in the end on the direction along beam parts outer circumferential surface.Thus, can cut
The effect for suppressing strain is obtained on the spot.
Extension can prolong from end to the outer circumferential surface with beam parts in the almost parallel direction of the tangential direction of weld part
Stretch.Thereby, it is possible to obtain the effect for more effectively suppressing to strain.
The weld seam of weld part can be upwardly extended in the side almost parallel with the length direction of beam parts.Thus, with along
The situation of peripheral direction welding is compared, and can effectively be weldingly fixed on bracket in beam parts.
When back frame possesses the connecting rod of the state of 2 oblique angle regulators of switching, beam parts can be seat
The position staggered on chair anteroposterior direction with connecting rod, upwardly extends in the side for being roughly parallel to the connecting rod.
Chassis body, which can have, to be extended on seat width and links the lower plate of 2 side frame lower end sides.Bracket can
To connect including the 1st bracket and the 2nd bracket, the 1st bracket in beam parts in the 1st side on seat width direction and lower plate
Knot, the 2nd bracket link in beam parts in the 2nd side on seat width direction and side frame.
Thus, compared with the situation that the 1st bracket and the 2nd bracket are each attached on side frame, for example, by the 1st bracket and
The situation that 2nd bracket is each attached in lower plate is easier to cut down dimensional discrepancy of beam parts, the 1st bracket and the 2nd bracket etc., from
And the beam parts can be linked and be fixed in chassis body.
Brief description of the drawings
Fig. 1 is the stereoscopic figure of the seat for vehicle of embodiment.
Fig. 2 is the stereoscopic figure of the back frame of the 1st embodiment.
Fig. 3 is the amplification stereogram of the lower plate portions of the back frame of the 1st embodiment.
Fig. 4 is the sectional view orthogonal with seat width direction of the lower plate, beam parts, connecting rod of the 1st embodiment etc..
Fig. 5 is the exploded perspective view of the lower plate, beam parts, connecting rod of the 1st embodiment etc..
Fig. 6 is the figure for showing to be fixed on bracket in the 1st embodiment the state of beam parts.
Fig. 7 is the figure of the state before showing to be fixed on bracket in the 1st embodiment beam parts.
Fig. 8 A are the front views of the 1st bracket of the 1st embodiment;Fig. 8 B are the top views of the 1st bracket of Fig. 8 A;Fig. 8 C are
The left view of the 1st bracket of Fig. 8 A.
Fig. 9 A are the front views of the 2nd bracket of the 1st embodiment;Fig. 9 B are the left views of the 2nd bracket of Fig. 9 A;Fig. 9 C are
The top view of the 2nd bracket of Fig. 9 B.
Figure 10 A- Figure 10 B are the explanatory drawins of the feature of the 1st embodiment;
Figure 11 is the sectional view orthogonal with seat width direction of the lower plate, beam parts, connecting rod of the 2nd embodiment etc..
Embodiment
The embodiment of the utility model is illustrated referring to the drawings.
" embodiment " described below shows an example in the embodiment for the technical scope for belonging to the utility model.
That is, technical solution described in the claims etc. is not limited to concrete structure or construction shown in following embodiments etc..
Mark represents that the arrow in direction etc. is marked for ease of understanding the correlation of each attached drawing in the drawings
Mark.(directions) such as the arrow of mark in the drawings does not limit the scope of the utility model.
The component illustrated or position at least label symbol, in addition to situation of the prior explanation for " 1 " etc., its
At least provided with 1.That is, which can be provided with more than 2.
(the 1st embodiment)
In the present embodiment, the preceding seat of ordinary passenger car is illustrated with seat.Wherein, direction described below
Refer to for the seat for vehicle of present embodiment to be assembled in the direction in the state of vehicle.
1. the summary of seat for vehicle
As shown in Figure 1, seat for vehicle 1 includes at least seat cushion 3 and backrest 5.Seat cushion 3 is to be used to support just
The position of seated user's buttocks etc..Backrest 5 is the position for being used to support occupant back.Backrest 5 can be relative to seat cushion 3
(inclination) is swung on seat anteroposterior direction.
Back frame 7 shown in Fig. 2 is the frame for the skeleton to form backrest 5, and so as to relative to cushion frame
The mode that (not shown) is swung links with cushion frame.Cushion frame is the frame for the skeleton for forming seat cushion 3.
Back frame 7 is including at least 2 side frames 9,11, upper plate 13 and lower plate 15.Each side frame 9,11 is under generally
Side upwardly extends, and the frame being provided separately on seat width.Wherein, in the present embodiment, seat width direction
It is consistent with the left and right directions of vehicle.
Upper plate 13 extends on seat width, and links the upper end side of each side frame 9,11.The upper plate 13 is tabular
Frame, and the cross sectional shape orthogonal with its extending direction of upper plate 13 is the open cross-sections shape for being configured to substantially C fonts.This
Outside, the upper plate 13 of present embodiment be with so that upper plate 13 in seat rear a side opening cross sectional shape plate portion
Part.
2 head restraint supports 13A, 13B are fixed with upper plate 13.2 head restraint supports 13A, 13B are to be used to support head
Rest the head on the component of the tubular (present embodiment is square tube shape) of 4 (with reference to Fig. 1).In addition, headrest 4 is used to support occupant head
Component.
As shown in figure 3, lower plate 15 extends on seat width, and link the lower end side of each side frame 9,11.Such as Fig. 4 institutes
Show, which is so that the cross sectional shape orthogonal with its extending direction is configured to substantially C fonts or J-shaped component.
In addition, the lower plate 15 of present embodiment is the cross sectional shape of top side opening.2 side frames 9,11, upper plate 13 and
Lower plate 15 is made of metal.By the juncture such as welding or by machanical fasteners such as screws by 2 side frames 9,11, upper plates
13 and 15 fixation connected to each other of lower plate, so as to form chassis body 7A.
As shown in figure 3, the bar-shaped beam parts extended on seat width are provided between 2 side frames 9,11
25.As shown in figure 4, beam parts 25 are made of the tubing of inner hollow.In addition, the beam parts 25 of present embodiment are by circular pipe structure
Into.
As shown in figure 5, beam parts 25 link via bracket 26 and chassis body 7A.Bracket 26 include the 1st bracket 27 and
2nd bracket 29.
1st bracket 27 links beam parts 25 in the 1st side on seat width direction with lower plate 15.2nd bracket 29
In linking in the 2nd side on seat width direction with side frame 11 for beam parts 25.In present embodiment, pass through screw or bolt
The 1st bracket 27 and the 2nd bracket 29 are linked are fixed on chassis body 7A Deng machanical fastener.
Specifically, it is fixed on by linking the 1st bracket 27 through the bolt 30 of lower plate 15 in seat anteroposterior direction under this
On plate 15.Nut (welded nut) 30A being fastenedly connected with bolt 30 is welded with the 1st bracket 27.
This is fixed on by linking the 2nd bracket 29 through the bolt 31 (with reference to Fig. 6) of side frame 11 in seat width
On side frame 11.Bolt 31 is fixed on the 2nd bracket 29 by welding or riveting.
Across side frame 11 in the side opposite with the 2nd bracket 29, by nut (being acorn nut in present embodiment) 31A
(with reference to Fig. 5) is screwed into bolt 31.Welded admittedly after bracket 26 has been manufactured as the component for being different from beam parts 25, then by bracket 26
Due to beam parts 25 (with reference to Fig. 7).In addition, the specific welding structure of bracket 26 will be described hereinafter.
2. leaning device
As shown in figure 3, oblique angle regulator is respectively arranged with the both sides on seat width direction in back frame 7
17、19.2 oblique angle regulators 17,19 are to be used for regulation backrest 5, i.e. (are inclined for providing that back frame 7 is swung
Mechanism tiltedly).
That is, 2 oblique angle regulators 17,19 are that lock-out state and releasing for being swung to limitation back frame 7 should
The mechanism that the releasing state of lock-out state switches over.Specifically, which operates by occupant etc.
It is in releasing state during tilt adjustment bar 21 (with reference to Fig. 1), when operating tilt adjustment bar 21 is being in lock-out state not by operator.
Connecting rod 23 is the component for being switched over to the state of 2 oblique angle regulators 17,19.That is, tilt and adjust
Pole 21 be arranged on beam parts 25 in the 1st side in seat width direction.Connecting rod 23 extends simultaneously on seat width
The operation of tilt adjustment bar 21 is transmitted to 2 oblique angle regulators 17,19.
As shown in figure 4, connecting rod 23 is disposed proximate to the position of beam parts 25.That is, beam parts 25 are seat front and back
On the position staggered upwards with connecting rod 23, upwardly extended in the side almost parallel with the connecting rod 23.In addition, present embodiment
Beam parts 25 relative to connecting rod 23 be inclined to seat rear side.
Also, if swinging operation, connecting rod are carried out in a manner of being pulled up to upper side to tilt adjustment bar 21
23 can linkedly be pivoted about with the swinging operation with its center axis Lo, thus to 2 oblique angle regulators 17,
19 transmit the swinging operation.
Therefore, if carrying out swinging operation to tilt adjustment bar 21,2 oblique angle regulators 17,19 can linkedly from
Lock-out state is changed into releasing state.If disappearing to the operating force of tilt adjustment bar 21,2 oblique angle regulators 17,19 from
Release state reset to lock-out state, and by be separately positioned on 2 oblique angle regulators 17,19 torsionspring 17A,
The restoring force of 19A makes tilt adjustment bar 21 and 23 spinning reduction of connecting rod to original position.
3. the welding structure of bracket
The welding structure of 3.1 the 1st brackets
As shown in Fig. 8 A~Fig. 8 C, the 1st bracket 27 includes the 1st plate portion 27A, the 2nd plate portion 27B and cradle portion 27C.
1st plate portion 27A and the 2nd plate portion 27B has the interior contact surface contacted with the outer circumferential surface 25A of beam parts 25 respectively
27D, 27E (with reference to Fig. 8 C).Substantially 90 degree of the angle that interior contact surface 27D and interior contact surface 27E is formed.
That is, the position that interior contact surface 27E and beam parts 25 are in contact is in the outer circumferential surface 25A along beam parts 25 with being inscribed
The position that contacting surface 27D and beam parts 25 are in contact stagger substantially 90 degree positions.Also, at least the 1st plate portion 27A and the 2nd plate portion
27B is made of metal, and integrally formed.
In addition, in the present embodiment, the 1st plate portion 27A and the 2nd plate portion 27B mono- are made by plastic workings such as punch process
Body shapes.The 1st plate portion 27A and the 2nd plate portion 27B are also collectively referred to as the 1st bracket main body 27P below.
A part of P1 in 1 end P0 of 1st bracket main body 27P is welded on the outer circumferential surface 25A of beam parts 25, and
The remainder P2 in the end P0 of the 1st bracket main body 27P is not welded on the outer circumferential surface 25A of beam parts 25.In other words, exist
2nd plate portion 27B's has weld part 27G (with reference to Fig. 8 B) in the end set in 25 peripheral direction of beam parts, and not to the 1st plate portion
27A's is welded (with reference to Fig. 8 A) in the end in 25 peripheral direction of beam parts.
In addition, in the present embodiment, the 1st plate portion 27A and the 2nd plate portion 27B and the outer circumferential surface 25A of beam parts 25 connect
Touch.1st bracket main body 27P, i.e. the 1st bracket 27 in a manner of substantially following outer circumferential surface 25A in being bent or tortuous shape
(with reference to Fig. 8 C).Therefore, the weld part 27G of present embodiment be arranged in the 1st bracket 27 in the end P0 in peripheral direction
A part of P1 on (with reference to Fig. 8 C).
In the end P0 with weld part 27G of the 1st bracket main body 27P, the oriented direction extension for leaving end P0 is set
Extension 27H.That is, when using outer circumferential surface 25A weld part 27G tangential direction as during circumscribed direction Lo, extension 27H is set
Put in the 1st bracket 27 in the 1st side on circumscribed direction Lo, and (join to the direction extension almost parallel with circumscribed direction Lo
According to Fig. 8 C).
In addition, above-mentioned " peripheral direction ", i.e., refer to " along the direction of outer circumferential surface 25A ", as in present embodiment when by justifying
When pipe forms beam parts 25, along the direction of its circular cross-section periphery.
If form beam parts 25 by square tube, " peripheral direction " refers to the direction along its rectangular section periphery (with reference to figure
11).(the reference consistent with the direction comprising the periphery plane where weld part 27G in beam parts 25 of circumscribed direction at this time
Figure 11).
Therefore, " peripheral direction (along the direction of outer circumferential surface 25A) " of the utility model can also be defined as follows.
That is, the circumscribed direction of the length direction and beam parts 25 with beam parts 25 is parallel virtual plane is as void
Plan face, using beam parts 25 the virtual face projection as " projection beam parts ", at this time, " peripheral direction is (along outer circumferential surface 25A
Direction) " be parallel with the direction generally normal to " projection beam parts " length direction direction on the virtual face.
The weld seam of weld part 27G upwardly extends (with reference to Fig. 8 A) in the side almost parallel with the length direction of beam parts 25.
Extension 27H is provided in position adjacent with weld part 27G on the length direction.That is, extension 27H is arranged at weld seam
In the 1st side on extending direction (with reference to Fig. 8 B).
Cradle portion 27C is the position for being fixed with nut 30A.The cradle portion 27C and the 1st bracket main body 27P of present embodiment
(the 2nd plate portion 27B) is integrally formed.That is, the 1st plate portion 27A, the 2nd plate portion 27B and cradle portion 27C are made of metal, and pass through punching
The plastic workings such as pressure processing are integrally formed by its.
As shown in figure 4, in the state of the 1st bracket 27 is installed in lower plate 15, cradle portion 27C and the 1st plate portion 27A
Contacted with lower plate 15.Therefore, cradle portion 27C and the 1st plate portion 27A are parallel to each other.
The welding structure of 3.2 the 2nd brackets
As shown in Fig. 9 A~Fig. 9 C, the 2nd bracket 29 has plate portion 29A and cradle portion 29B.Plate portion 29A has and beam portion
The interior contact surface 29C of the outer circumferential surface 25A contacts of part 25 (with reference to Fig. 9 B).
As shown in Figure 9 A, the 1st end P3 on circumscribed direction is provided with weld part 29D in plate portion 29A.Wherein,
Circumscribed direction is identical with above-mentioned circumscribed direction, refers to " with outer circumferential surface 25A in the parallel side of the tangential direction of weld part 29D
To ".
The oriented direction extension for leaving the 1st end P3 is set in the 1st end P3 on circumscribed direction in plate portion 29A
Extension 29E.As shown in Figure 9 B, the front ends of the extension 29E of present embodiment in their extension direction are towards beam parts 25
Bending is tortuous.
That is, the root of extension 29E extends from the 1st end P3 of plate portion 29A to the almost parallel direction in circumscribed direction.
The front end of extension 29E tilts in a manner of close to beam parts 25 relative to circumscribed direction.Therefore, including the 2nd bracket 29
At the contact surface 29C and front end of extension 29E is contacted with the outer circumferential surface 25A of beam parts 25.
As shown in Figure 9 C, the weld seam of weld part 29D is upwardly extended in the side almost parallel with the length direction of beam parts 25.
Also, extension 29E is provided in position adjacent with weld part 29D on the length direction.That is, extension 29E is at least set
In weld seam in the 1st side on extending direction.
Cradle portion 29B is the position for being fixed with bolt 31.The cradle portion 29B and plate portion 29A of present embodiment are integrally formed.
That is, plate portion 29A and cradle portion 29B are made of metal, and make its integrally formed by plastic workings such as punch process.
In the state of the 2nd bracket 29 is installed on side frame 11, only cradle portion 29B is contacted with side frame 11.Therefore, stent
Portion 29B and plate portion 29A rectangular relation each other.
3.3 install beam parts to chassis body (with reference to Fig. 5)
Follow the steps below the operation to chassis body 7A installation beam parts 25.That is, operator will be arranged on first
Bolt 31 on 2nd bracket 29 is inserted into side frame 11.
Next, bolt 30 is run through insertion lower plate 15 by operator, and the bolt 30 is screwed into nut 30A, afterwards will
Nut 31A is screwed into bolt 31.But, operator can also run through insertion after nut 31A is screwed into bolt 31, then by bolt 30
Lower plate 15, and the bolt 30 is screwed into nut 30A.
4. the feature of the seat for vehicle of present embodiment
In the back frame 7 of present embodiment, beam parts 25 are via the 1st bracket 27 and the 2nd bracket 29 and frame master
Body 7A links.Therefore, back frame is made substantially to be subject to the lengthwise dimension deviation and beam parts 25 of beam parts 25
The influence of the depth of parallelism between 1st end face and the 2nd end face etc..So the back frame 7 that can improve productivity can be obtained.
But, the 1st bracket 27 of present embodiment and the 2nd bracket 29 are in respective end and the outer circumferential surface of beam parts 25
25A is welded.Therefore, it is possible to the 1st bracket 27 and the 2nd bracket 29 is set to produce strain due to heat when welding, so that should
Other ends beyond end produce big displacement and remote beam parts 25 or proximity beam parts 25.
When i.e., as shown in Figure 10A and 10B, other ends of the 1st bracket 27 and the 2nd bracket 29 are due to welding
Heat is possible to that the position shown in double dot dash line can be displaced to from solid line position (design centre position).
Assuming that produce big thermal strain as described above in the 1st bracket 27 and the 2nd bracket 29, it is likely that can not should
1st bracket 27 and the 2nd bracket 29, which suitably link, to be fixed on chassis body 7A, i.e. can not suitably connect beam parts 25
Knot is fixed on chassis body 7A.In this regard, the direction to the end for leaving the 1st bracket 27 is respectively arranged with the present embodiment
And extension 27H, 29E of the direction extension to the end for leaving the 2nd bracket 29.
Therefore, even in the feelings for causing to produce thermal strain in the 1st bracket 27 and the 2nd bracket 29 due to heat when welding
Under shape, contacted by extension 27H, 29E with outer circumferential surface 25A, thermal strain can be limited and further developed, so as to can also suppress
1st bracket 27 and the 2nd bracket 29 produce big strain.
The extension 27H of 1st bracket 27 be arranged in the 1st bracket 27 in the 1st side in peripheral direction.Thus, energy
It is enough effectively to obtain the effect for suppressing strain.
Extension 27H, 29E extend from the end of bracket 26 to the almost parallel direction in circumscribed direction.Thereby, it is possible to
More effectively obtain the effect for suppressing strain.
Also, the root of the extension 29E of the 2nd bracket 29 is from the 1st end P3 to the direction almost parallel with circumscribed direction
Extension, and the front end of the extension 29E of the 2nd bracket 29 tilts in a manner of close to beam parts 25 relative to circumscribed direction.
Thereby, it is possible to effectively obtain the effect for suppressing to strain.
The weld seam of weld part 27G, 29D are upwardly extended in the side almost parallel with the length direction of beam parts 25.Thus, with
The situation welded along peripheral direction is compared, and the 1st bracket 27 and the 2nd bracket 29 can be effectively weldingly fixed on beam
On component 25.
1st bracket 27 is fixed in lower plate 15, and the 2nd bracket 29 is fixed on side frame 11.
Such as the situation with being each attached to the 1st bracket 27 and the 2nd bracket 29 in lower plate 15 and by the 1st support thus,
27 and the 2nd bracket 29 of frame is separately fixed at situation of side frame 9,11 etc. and compares, it is easier to cuts down beam parts 25, the 1st bracket 27
And the 2nd bracket 29 dimensional discrepancy etc., be fixed on so as to which the beam parts 25 are linked on chassis body 7A.
(the 2nd embodiment)
As shown in figure 11, the beam parts 25 of present embodiment are made of square tube.Thus, with forming beam parts 25 by pipe
Situation is compared, and can more improve the flexural rigidity and buckling strength of beam parts 25.
In addition the mark such as pair structural element identical with the above embodiment symbol identical with the above embodiment, therefore
The repetitive description thereof will be omitted.
(other embodiment)
In the bracket 26 of the above embodiment, it can also be grown in the end of 27 length direction of the 1st bracket and the 2nd bracket 29
The end in degree direction sets weld part 27G, 29D respectively.Wherein, the structure of the situation is that weld seam is in peripheral direction or outer butt
Upwardly extend, extension 27H, 29E extend from the end of the 1st bracket 27 and the end of the 2nd bracket 29 to length direction respectively.
It is identical with the extension 29E of the 2nd bracket 29 in the above embodiment, the front end court of extension 27H can also be made
Bent to beam parts 25.Wherein, front end is preferably made to be bent in a manner of along peripheral direction.
The beam parts 25 of the above embodiment can be by forming such as hollow square tube material, solid round rod, solid square rod.
The above embodiment is the preceding seat seat of ordinary passenger car.But, the application not limited to this of the utility model,
It can apply in seat used in the vehicles such as its automotive sheet or rail truck, ship, aircraft.
In addition, as long as the utility model meets the inventive concept of claim record, the above embodiment is not limited to.
Accordingly it is also possible to using by combining at least two embodiment in above-mentioned multiple embodiments the structure that is formed.
Claims (6)
1. a kind of seat for vehicle back frame, is applied in the backrest of seat for vehicle, the traffic
Instrument seat back frame is characterized in that possessing:
Chassis body, the chassis body, which has, to be extended in roughly vertical direction and is provided separately on seat width
2 side frames;
Beam parts, the beam parts are bar-shaped, are arranged between 2 side frames, and extend on seat width;
Bracket, the bracket is used to the beam parts being attached to the chassis body, and has in the end of the bracket
There is the weld part for being welded on the beam parts outer circumferential surface;And
Extension, the extension is arranged on the end of the bracket, and extends to the direction for leaving the end.
2. seat for vehicle back frame according to claim 1, it is characterised in that
The extension be arranged in the bracket in the end on the direction along the beam parts outer circumferential surface.
3. seat for vehicle back frame according to claim 1, it is characterised in that
The extension is almost parallel in the tangential direction of the weld part to the outer circumferential surface with the beam parts from the end
Direction extension.
4. seat for vehicle back frame according to claim 1, it is characterised in that
The weld seam of the weld part is upwardly extended in the side almost parallel with the length direction of the beam parts.
5. seat for vehicle back frame according to claim 1, it is characterised in that be also equipped with:
2 oblique angle regulators, 2 oblique angle regulators are separately positioned on 2 side frames, and can be right
The lock-out state that the chassis body is swung is limited to switch over the releasing state for releasing the lock-out state;And
Connecting rod, the connecting rod are the connecting rods extended on seat width, and described 2 are tilted by rotation
The state of angle adjuster switches over,
The beam parts are the position staggered on seat anteroposterior direction with the connecting rod, almost parallel with the connecting rod
Side upwardly extends.
6. seat for vehicle back frame according to claim 1, it is characterised in that
The chassis body, which has, to be extended on seat width and links the lower plate of 2 side frame lower end sides,
The bracket includes the 1st bracket and the 2nd bracket, and the 1st bracket is in the beam parts on seat width direction
The 1st side and the lower plate link, the 2nd bracket the beam parts in the 2nd side on seat width direction with
The side frame links.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016185922A JP6708081B2 (en) | 2016-09-23 | 2016-09-23 | Back frame for vehicle seats |
JP2016-185922 | 2016-09-23 |
Publications (1)
Publication Number | Publication Date |
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CN207291770U true CN207291770U (en) | 2018-05-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201721228180.4U Active CN207291770U (en) | 2016-09-23 | 2017-09-22 | Seat for vehicle back frame |
Country Status (3)
Country | Link |
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US (1) | US10363848B2 (en) |
JP (1) | JP6708081B2 (en) |
CN (1) | CN207291770U (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6662197B2 (en) * | 2016-05-25 | 2020-03-11 | トヨタ紡織株式会社 | Back frame structure for vehicle seats |
USD846902S1 (en) * | 2017-04-10 | 2019-04-30 | Nio Nextev Limited | Car seat |
USD847523S1 (en) * | 2017-04-10 | 2019-05-07 | Nio Nextev Limited | Car seat |
USD862096S1 (en) | 2017-04-10 | 2019-10-08 | Nio Nextev Limited | Bench car seat |
JP7062526B2 (en) * | 2018-06-07 | 2022-05-06 | 株式会社タチエス | Vehicle seat |
CN114340947B (en) * | 2019-08-28 | 2025-01-17 | 提爱思科技股份有限公司 | Vehicle seat |
US11639125B2 (en) * | 2021-07-19 | 2023-05-02 | Lear Corporation | Vehicle seat assembly and method of assembling |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07289388A (en) | 1994-04-28 | 1995-11-07 | Futaba Sangyo Kk | Seat back frame, seat back frame with reinforcing material and manufacturing method thereof |
US20040080194A1 (en) * | 2002-10-28 | 2004-04-29 | Johnson Controls Technology Company | Mechanical attachment of anchorage |
US20040080195A1 (en) * | 2002-10-28 | 2004-04-29 | Johnson Controls Technology Company | Mechanical attachment of anchorage and bracket |
CN101677691B (en) * | 2007-04-18 | 2016-08-03 | 江森自控科技公司 | Tailor welded seat and parts |
WO2014024859A1 (en) * | 2012-08-07 | 2014-02-13 | テイ・エス テック株式会社 | Member attachment structure and vehicle seat |
FR2998837B1 (en) * | 2012-12-05 | 2015-02-20 | Faurecia Sieges Automobile | JOINT ASSEMBLY FOR VEHICLE SEAT |
JP5903456B2 (en) * | 2014-03-28 | 2016-04-13 | 本田技研工業株式会社 | Manufacturing method of body frame of saddle riding type vehicle |
JP2018094991A (en) * | 2016-12-09 | 2018-06-21 | トヨタ紡織株式会社 | Vehicular seat |
-
2016
- 2016-09-23 JP JP2016185922A patent/JP6708081B2/en active Active
-
2017
- 2017-09-19 US US15/708,868 patent/US10363848B2/en active Active
- 2017-09-22 CN CN201721228180.4U patent/CN207291770U/en active Active
Also Published As
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JP2018047865A (en) | 2018-03-29 |
US20180086241A1 (en) | 2018-03-29 |
JP6708081B2 (en) | 2020-06-10 |
US10363848B2 (en) | 2019-07-30 |
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